diff --git a/docs/man/ModemManager.8 b/docs/man/ModemManager.8
index a2cb3ec2af574ba5e5d5988c5c0383d06ea4d492..5cd79f3c732f056fb621f5a3bf95baf8269447a0 100644
--- a/docs/man/ModemManager.8
+++ b/docs/man/ModemManager.8
@@ -21,6 +21,23 @@ from the command line.
 
 .SH APPLICATION OPTIONS
 .TP
+.B \-\-filter\-policy=<policy>
+Specify which ports are probed and how:
+.RS 9
+.TP
+\fB'WHITELIST-ONLY'\fR
+Only devices or ports explicitly whitelisted with the 'ID_MM_DEVICE_PROCESS' udev tag are probed.
+.TP
+\fB'DEFAULT'\fR
+All ports are allowed to be probed except for the ones explicitly greylisted as RS232 adapters or completely blacklisted.
+.TP
+\fB'STRICT'\fR
+Only the TTY ports that are heurstically determined to be very likely to be modem ports are probed. Nay end up ignoring some devices.
+.TP
+\fB'PARANOID'\fR
+This is equivalent to running the STRICT mode but also applying the blacklist and RS232 greylist filters explicitly.
+.RE
+.TP
 .B \-\-no\-auto\-scan
 Fully disable udev-based auto-scan looking for devices.
 .TP